NF Panelboard interiors can be used for applications such as commercial buildings, industrial buildings, stadiums, and offices. These interiors provide protection for commercial and industrial applications. NF Panelboards are versatile panelboards that feature a wide selection of circuit breakers, accessories, and ready to install kits. NF Panelboards have modular construction to accept field installable accessories and conversion kits. These filler plates come in bags of 15. Fillers have a height of 0.993 inches and a width of 3.578 inches. Fillers are UL Listed and CSA certified by UL.